
import {
	Blob,
	btoa,
	createImageBitmap,
	CSSStyleDeclaration,
	performance,
	document,
	DOMParser,
	EventTarget,
	fetch,
	Headers,
	HTMLCanvasElement,
	Image,
	HTMLImageElement,
	ImageBitmap,
	location,
	navigator,
	Request,
	requestAnimationFrame,
	cancelAnimationFrame,
	Response,
	URL,
	window,
	self,
	WebAssembly,
	Worker,
	XMLHttpRequest,
	ImageData,
	TextDecoder,
	core
	} from 'dhtml-weixin';
import Node, { addNodeClass } from '../core/Node.js';
import { addNodeElement, nodeProxy } from '../shadernode/ShaderNode.js';

class HashNode extends Node {

	constructor( seedNode ) {

		super();

		this.seedNode = seedNode;

	}

	setup( /*builder*/ ) {

		// Taken from https://www.shadertoy.com/view/XlGcRh, originally from pcg-random.org

		const state = this.seedNode.uint().mul( 747796405 ).add( 2891336453 );
		const word = state.shiftRight( state.shiftRight( 28 ).add( 4 ) ).bitXor( state ).mul( 277803737 );
		const result = word.shiftRight( 22 ).bitXor( word );

		return result.float().mul( 1 / 2 ** 32 ); // Convert to range [0, 1)

	}

}

export default HashNode;

export const hash = nodeProxy( HashNode );

addNodeElement( 'hash', hash );

addNodeClass( 'HashNode', HashNode );
